but as soon as they were identified at 26-year-old tamerlan and 19-year-old dzhokhar tsarnaev, their uncle spoke out. >> i say dzhokhar, if you are alive, turn yourself in and ask for forgiveness from the victims, from the injured and from those who left. as forgiveness from these people. >> i'm suspicious that this was staged. the picture was staged. >> reporter: a much different response from the brother's aunt in ontario. in russia both the mother and father said they refuse to believe that their son is responsible for the bombings and killing of an mit police officer. >> someone framed them. i don't know who but someone framed them. >> it's impossible for them to do these things. so i'm really, really really, really feeling that this is a set up. >> now former classmates of the second suspect dzhokhar tsarnaev say he was a happy student. but a mechanic said he seemed extremely nervous and even seemed like the 19 was on drugs. >>> the fbi used social media to get the suspects pictures to spread quickly. but facebook and twitter has gotten the public involved in a different way. ro